Data Analysis Concepts Quiz

What is the process of combining multiple data points to provide a summary or overall picture called?

• Filtering

• Aggregation

• Reasoning

• Outlier Analysis

Which term describes the removal of unwanted data to focus on specific information?

• Aggregation

• Filtering

• Interpreting

• Reasoning

What is the impact of data points that deviate significantly from other observations in a dataset?

• They improve data accuracy

• They have no effect

• They can skew results

• They simplify data analysis

What skill involves making sense of data presented in charts or graphs?

• Filtering

• Aggregation

• Interpreting

• Outlier Analysis

Which process involves using logic to draw conclusions from data?

• Aggregation

• Filtering

• Reasoning

• Interpreting

What is involved in interpreting visual data according to the text?

• Identifying key features such as peaks, dips, or consistent patterns

• Memorizing the entire dataset

• Ignoring any patterns in the data

• Focusing only on numerical values

How should key features in a visualization be related according to the text?

• They should be related to the underlying dataset

• They should be ignored

• They should be related to unrelated datasets

• They should be memorized without context

What is the process of summarizing data to make it more comprehensible and actionable called?

• Aggregation

• Segmentation

• Classification

• Filtration

In data visualizations, what might aggregation involve?

• Combining data points into groups

• Separating data points into individual units

• Ignoring data points

• Deleting irrelevant data

Which of the following is an example of aggregation in data visualization?

• Summarizing sales by region

• Listing all sales transactions

• Ignoring sales data

• Deleting duplicate sales entries